Histone modification Study guides, Class notes & Summaries

NR507 2023 Midterm Exam Questions with Correct Answers Epigenetics - ANSWER heritable alterations that are not due to changes in DNA sequence epigenetic modifications, or "tags," such as DNA methylation and histone modification - ANSWER alter DNA accessibility and chromatin structure, thereby regulating patterns of gene expression. histone modifications - ANSWER A histone modification is a covalent post-translational modification (PTM) to histone proteins whi...

Succinate is a substrate for which complex in the electron transport chain? a.) Complex 1 (NADH-1 oxidoreductase) b.) Complex IV (Cyt c oxidase) c.) Complex V (ATP synthase) d.) complex II (Succinate-Q reductase) Complex II (succinate-Q reductase) (D) Which of the following would be consistent with an exergonic reaction? a.) ∆S would be negative b.) ∆G would be negative c.) ∆S would be positive d.)∆G would be positive ∆G would be negative (B) Whi...

NR 546 Midterm Exam 2023/2024 Questions AND Answers Update A+ What should the PMHNP consider when prescribing chemical restraints? - Answer-- allergy status -prior med hx for adverse drug reactions r/t the meds ordered in the chemical restraint -state regulations regarding chemical restrains must be reviewed Are the PMHNP and other staff liable if the client has an allergic reaction or adverse side effects to the drugs used for chemical restraint? - Answer-No. The client has been court-...

NURS 6630 week 2 Discussion Questions With Answers: Foundational Neuroscience. Epigenetics focuses on alterations and modification of genes, including methylation, acetylation, phosphorylation, and ubiquitylation of DNA and histone proteins (nucleosomes), and chromatin remodeling results in disorders like cancer and degenerative diseases (Rasool et al., 2015). Rasool et al. noted that factors like nutrition and the environment cause epigenetics alteration. The authors proposed that the coll...

Combined Genetics HMX Exam Questions and Answers _________________________ approach to treatments involves a clinical trial with a group of affected individuals. Some receive the treatment and others receive a control. We evaluate if the treatment, on average, improves the outcome of the treatment group. - ANSWER Traditional Between treatment and control groups in the traditional approach of treatment, there can be variability between groups where some groups respond favorably and ...

What should the PMHNP consider when prescribing chemical restraints? - -allergy status -prior med hx for adverse drug reactions r/t the meds ordered in the chemical restraint -state regulations regarding chemical restrains must be reviewed Are the PMHNP and other staff liable if the client has an allergic reaction or adverse side effects to the drugs used for chemical restraint? - No. The client has been court-ordered to take the prescribed medications and the standing order for chemical r...

Lipinski's rule of 5 - ANSWER-- Poor absorption or permeation are more likely when: 1. mass greater than 500 Da 2. highly lipophilic - logP > 5 3. more than 5 hydrogen bond donors 4. more than 10 hydrogen bond acceptors Partition coefficient - ANSWER-p = C(octanol)/C(water) - ratio of the equilibrium concentrations of dissolved substance in a two-phase system containing two largely immiscible solvents (water & octanol) - Log10(P) Improved Lipinski Parameters - ANSWER-1. Partition...

SI Practice Exam 4 |57 Questions with Verified Answers Which of the following statements is FALSE of the spliceosome and splicing mechanism? a. U1 snRNA base pairs with the 5' splice site b. The active spliceosome is produced when U1 and U3 snRNP exit c. U2 snRNA and U6 snRNA base pair to each other for the 1st reaction to occur d. U2 snRNA anneals to the branch site in the intron - CORRECT ANSWER b. The active spliceosome is produced when U1 and U3 snRNP exit Where are SR protein...

Bio 315- Exam 1 Questions and Answers 100% Correct From the list below, select the one cellular structure or compartment that is not found in animal cells: A. Plasmodesmata B. Golgi apparatus C. Endoplasmic Reticulum D. Plasma membrane - Correct Answer ️️ -A The most reliable feature distinguishing a eukaryotic cell from prokaryotic cell is the: A. Presence of plasma membrane B. Presence of a nucleus C. Eukaryotic cells larger size D. Presence of DNA - Correct Answer ️️ -B No...

1. Epigenetic: Changes in phenotypeHeritable Not due to changes in DNA sequence DNA methylation or histone modification 2. Collective term for all different DNA molecules within a cell or organism: - Genome 3. DNA protein complex: Chromosome 4. How many DNA molecules does a male have? female have?: Male 25Female 24 5. Single ring based on carbon and nitrogen atoms C,T: Pyrimidine 6. Double ring structure A, G: Purine 7. How many bonds holds together G-C: 3 hydrogen bonds 8. How many ...